AMD Radeon RX 7800 XT vs AMD Radeon HD 6850

VS

AMD Radeon RX 7800 XT

AMD Radeon HD 6850

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 12 years and 10 months late

Boost Clock2430MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (624.1GB/s vs 128.0GB/s)

2880 additional rendering cores

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +2408%

37.32 TFLOPS

Radeon HD 6850

1.488 TFLOPS

Radeon RX 7800 XT

VS

Radeon HD 6850

Graphics Card

Aug 2023

Release Date

Oct 2010

Navi III

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1295 MHz

Base Clock

-

2430 MHz

Boost Clock

-

2438 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

624.1GB/s

Bandwidth

128.0GB/s

Render Config

60

Compute Units

12

-

3840

Shading Units

960

240

TMUs

48

96

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

24.80 GPixel/s

583.2 GTexel/s

Texture Rate

37.20 GTexel/s

74.65 TFLOPS

FP16 (half)

-

37.32 TFLOPS

FP32 (float)

1488 GFLOPS

1166 GFLOPS

FP64 (double)

-

Board Design

263W

TDP

127W

600 W

Suggested PSU

300 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 32

GPU Name

Barts

Navi 32 XT (215-180000006)

GPU Variant

Barts PRO (215-0798006)

RDNA 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

28.1 billion

Transistors

1.7 billion

346 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

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